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The PJM Interconnection operates a competitive wholesale electricity market and manages the reliability of its transmission grid. PJM provides open access to the transmission and performs long-term planning. In managing the grid, PJM centrally dispatches generation and coordinates the movement of wholesale electricity in all or part of 13 states (Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia and West Virginia) and the District of Columbia. PJM’s markets include energy (day-ahead and real-time), capacity and ancillary services.

PJM was founded in 1927 as a power pool of three utilities serving customers in Pennsylvania and New Jersey. In 1956, with the addition of two Maryland utilities, it became the Pennsylvania-New Jersey-Maryland Interconnection, or PJM. PJM became a fully functioning ISO in 1996 and, in 1997, it introduced markets with bid-based pricing and locational market pricing (LMP). PJM was designated an RTO in 2001.

List of Orders

Click on the categories below to view additional information.

Docket No.Date IssuedCompanyTitle
ER24-2045-005 October 15, 2026PJM Interconnection Order Accepting Compliance In Part And Directing Further Compliance 
EL26-67-000June 18, 2026PJM Interconnection, L.L.C.Order Instituting Proceeding Under Section 206 of the Federal Power Act | News Release | Fact Sheet | Presentation
ER24-2045-004April 16, 2026PJM Interconnection, L.L.C.ORDER ACCEPTING COMPLIANCE IN PART AND DIRECTING FURTHER COMPLIANCE
ER26-1088-000April 16, 2026PJM Interconnection, L.L.C.ORDER ACCEPTING COMPLIANCE IN PART AND DIRECTING FURTHER COMPLIANCE
EL26-7-000March 19, 2026PJM Interconnection, L.L.C.The order denies RWE Clean Energy, LLC’s (RWE) complaint alleging that PJM Interconnection, L.L.C. violated its Open Access Transmission Tariff when it allocated costs for certain Network Upgrades to RWE’s new service requests for its Maryland Blue Crab Solar and Storage, LLC project in the Phase III System Impact Study.
Docket No.Date IssuedCompanyTitle
EL25-49-000December 18, 2025PJMOrder on Show Cause Proceeding, Directing Compliance Filing, Establishing Paper Hearing, and Granting In Part and Denying In Part Complaint
ER24-98-002September 18, 2025PJM Interconnection, L.L.C.Order Addressing Arguments Raised on Rehearing and Setting Aside Prior Order, In Part
ER24-2045-000July 24, 2025PJM InterconnectionOrder on Compliance
ER25-785-002June 26, 2025PJM InterconnectionOrder Addressing Arguments Raised on Rehearing
ER25-612-000April 17, 2025PJM InterconnectionOrder Dismissing Waiver Request
ER24-2397-001March 20, 2025Southwest Power Pool, Inc.Order Addressing Arguments Raised on Rehearing
EL25-49-000February 20, 2025PJM InterconnectionOrder Instituting Proceeding Under Section 206 Of The Federal Power Act and Consolidating With Other Proceedings
Docket No.Date IssuedCompanyTitle
EL24-18-000December 19, 2024PJM Interconnection LLCOrder denying complaint
ER24-2401-001December 19, 2024PJM Interconnection LLCOrder addressing arguments raised on rehearing
EL24-104-001December 19, 2024PJM Interconnection LLCOrder addressing arguments raised on rehearing
ER24-1583-001November 21, 2024Southwest Power Pool, Inc.Order Addressing Arguments Raised on Rehearing
ER24-2520-000November 21, 2024Southwest Power Pool, IncOrder Rejecting Tariff Revisions
ER24-99-003October 17, 2024PJM Interconnection LLCOrder Addressing Arguments Raised on Rehearing, Setting Aside Prior Order, in Part, and Granting Motion to Lodge
EL23-104-000September 19, 2024PJM Interconnection LLCOrder Denying Complaint
ER24-156-000July 25, 2024PJM Interconnection LLC Order on Compliance Filing
ER22-962-005July 25, 2024PJM Interconnection LLC Order on Compliance Filing
ER23-1067-002 June 27, 2024PJM Interconnection LLC Order Addressing Arguments Raised on Rehearing 
ER17-1433-005June 27, 2024PJM Interconnection LLC Order on Remand 
EL24-64-000May 23, 2024PJM Interconnection LLCOrder Denying Complaint
Docket No.Date IssuedCompanyTitle
ER22-2931-000December 20, 2023PJM Interconnection LLCOrder on Unexecuted Interconnection Service Agreements
EL23-53-003December 19, 2023Essential Power OPP, LLC, et al. v. PJM Interconnection, L.L.C.Order Approving Uncontested Settlement
ER23-2975-000December 19, 2023PJM Interconnection LLCOrder Approving Uncontested Settlement
EL23-63-000December 19, 2023Energy Harbor LLC v. PJM Interconnection, L.L.C.Order Denying Complaint
ER24-163-000December 19, 2023PJM Interconnection LLCOrder on Abandoned Plant Incentive
ER23-2327-000September 21, 2023PJM Interconnection, L.L.C.Order Addressing Arguments Raised on Rehearing
EL22-32-000September 21, 2023PJM Interconnection, L.L.C.Order Accepting, In Part, Proposed Tariff Revisions, Requiring Tariff Revisions Pursuant To Section 206, And Addressing Arguments Raised On Rehearing
EL22-65-000September 21, 2023Southwest Power Pool Inc.Order on Show Cause Proceeding
ER23-729-001July 27, 2023PJM Interconnection, L.L.C.Order Addressing Arguments Raised on Rehearing
ES23-23-000March 16, 2023PJM Interconnection, L.L.C.Order Modifying Authorization to Issue Securities
Docket No.Date IssuedCompanyTitle
EL19-58-007July 28, 2022PJM Interconnection, L.L.C.Order Addressing Arguments Raised on Rehearing and Dismissing Request for Clarification
EL22-26-000February 17, 2022PJM Interconnection, L.L.C.Order Finding Operating Agreement Unjust and Unreasonable and Establishing Replacement Rate
ER21-1802-000February 17, 2022PJM Interconnection, L.L.C. Order Accepting Tariff Revisions
EL19-47-000 January 20, 2022Independent Market Monitor for PJM v. PJM Interconnection, L.L.C. 
 
Order Dismissing Motion for Clarification and Waiver 
ER19-105-005 January 20, 2022PJM Interconnection, L.L.C.Order to reconsider the Commission’s Prior Orders
ER20-1832-001January 20, 2022PJM Interconnection, L.L.C. Proposed Revisions To Its Formula Rate
Docket No.Date IssuedCompanyTitle
ER21-2965-000December 16, 2021PJM Interconnection, L.L.C., Atlantic City Electric Company, Delmarva Power & Light Company, and PECO Energy CompanyOrder on Formula Rate Tariff Revisions and Establishing Hearing and Settlement Judge Procedures
ER21-1635-002December 16, 2021PJM Interconnection, L.L.C.Letter Order Accepting Proposed Tariff Records
ER20-1739-000November 18, 2021American Transmission Systems, Inc., PJM Interconnection, L.L.C.Order on Compliance and Establishing Hearing and Settlement Judge Procedures.
EL21-62-001 September 23, 2021Jackson Generation, LLC v. PJM Interconnection, L.L.C. Rehearing Order Addressing Argments Raised On Rehearing
EL21-78-000June 17, 2021PJM Interconnection, L.L.C. Advisory 1 of 1Order to Show Cause
ER17-1433-001May 20, 2021PJM Interconnection, L.L.C.Order Rejecting Compliance Filing, Directing Further Compliance, and Dismissing Complaint
ER19-2722-003May 20, 2021PJM Interconnection, L.L.C.Order Accepting Compliance Filing
ER20-1150-001April 15, 2021PJM Interconnection, L.L.C., The Dayton Power & Light CompanyLetter Order Approving Uncontested Settlement
ER20-227-001April 15, 2021PJM Interconnection, L.L.C. and Jersey Central Power & Light Co.Letter order approving settlement
EL19-47-000March 18, 2021Independent Market Monitor for PJM 
v. 
PJM Interconnection, L.L.C.
Order Granting Complaints and Ordering Additional Briefing
ER20-2686-00002/18/21PJM Interconnection, L.L.C.Order Accepting Compliance Filing
EL20-30-00101/19/21Indiana Municipal Power Agency, and City of Lawrenceburg, Indiana
v.
PJM Interconnection, L.L.C., American Electric Power Service Corp., and Lawrenceburg Power, LLC.
Order Addressing Arguments Raised on Rehearing

This page was last updated on October 15, 2026